公开(公告)号：US20160248689A1

公开(公告)日：2016-08-25

申请号：US14660397

申请日：2015-03-17

Applicant: Broadcom Corporation

Inventor： Mohammad Jafar Akhbarizadeh ,  Mark David Griswold

IPC: H04L12/835 ,  H04L12/823

CPC classification number: H04L47/30 ,  H04L43/0817 ,  H04L47/32

Abstract: A system includes a pre-trigger buffer and a post-trigger buffer for recording entries related to specific network element. Buffer management monitoring circuitry captures entries leading up to a trigger criterion being met in the pre-trigger buffer and entries following the trigger criterion being met in the post-trigger buffer. The trigger criterion may include network element status, such as a threshold queue level; or an event, such as a dropped packet. The pre-trigger buffer may include a circular buffer in which older entries are overwritten by newer entries. Once the trigger condition is met, the pre-trigger buffer contents are held while the post-trigger buffer fills. Once the post-trigger buffer fills, the contents of the buffers may be read.

Abstract translation: 系统包括预触发缓冲器和用于记录与特定网元相关的条目的后触发缓冲器。 缓冲区管理监视电路捕获导致触发前缓冲区中达到的触发条件的条目，并在触发后缓冲区中满足触发条件之后的条目。 触发条件可以包括网元状态，例如阈值队列级; 或诸如丢弃的分组的事件。 预触发缓冲器可以包括循环缓冲器，其中较旧的条目被较新的条目覆盖。 一旦满足触发条件，触发前缓冲区内容就被保持，而触发后缓冲区填满。 一旦触发后缓冲区填满，就可以读取缓冲区的内容。